Lennox iComfort G71MPP-03 Setup Manual page 16

When cooling demand is terminated, a 5 minute minimum off time delay is initiated.
Second stage cooling is energized when the discharge air temperature is 7°F higher
than the set point of the cooling staging temperature jumper.
Heating Operation  Conventional Heat/Cool and Heat Pump Systems
When a in-zone thermostat makes a demand for heating, the zone damper opens
and heating equipment begins operating. Heating demand is terminated when:
1. All zone demands for heating are terminated.
2. The demand has exceeded the heat/cool changeover time limit (20minutes)
while a cooling demand exists.
When heating demand is terminated, a 5minute minimum off time delay is initiated.
Second-stage heating is energized if the discharge air temperature is lower than the
set point of the heating staging temperature set point.
C. To Adjust Zone Control Settings
Under system devices use the following procedures to adjust various zoning control
parameters (a complete list of all available parameters are listed starting on page
6).
System Devices > System
A complete list of available zoning parameters under System is provided in table 2
on page 6.
1. In the system devices screen, use the arrows (A) to highlight System and
press edit (B).
2. Touch one of the options (C) to select for example Zoning Target Supply Air
Temp for Cooling Press edit (D) to continue.
3. Use up or down arrows (E) to change the value.
4. Press save (F).
1. In the "system devices" screen (figure 19), use the arrows (A) to
highlight Zoning Control and press edit (B).
2. Touch one of the options (C) to select "Zone 2 Temp Reading Calib
ration". Press edit (D) to continue.
3. Use up or down arrows (E) to change the value.
4. Press save (F).
After completing the Zone Control settings press the back button to con
tinue. If all system settings have been completed, then from "system
devices" screen, continue by pressing the next button. The Edit and Test
Airflow per Zone screen will appear.
507152-01
System Devices > Zoning Control
System
Furnace
Thermostat
2 Stage HP Unit
Power (120VAC) Humidifier
Zoning Control
Zoning Control
Equipment Name
Zone 2 Temp Reading Calibration
Zone 3 Temp Reading Calibration
Zone 4 Temp Reading Calibration
9:39 am Aug 15, 2012
Figure 19. Adjust Zone Temperature Reading Calibration
Page 16
system devices
System
Furnace
Thermostat
A
2 Stage HP Unit
Zoning Control
System
Equipment Name
Zoning Target Supply Air Temp C
Zoning Target Supply Air Temp fo
Zoning Target Supply Air Temper
Zoning Target Supply Air Temper
Zoning Supply Air Temp Limit for
Zoning Supply Air Temp Limit for
HP heating lockout time
9:39 am Aug 15, 2012
Figure 18. Adjusting System Devices > System Parameters for
iharmony™ Zoning System
To adjust a setting,
system devices
highlight it, then press
Edit
furnace
A
To adjust a setting,
about
highlight it, then press
Edit
reset All
furnace
edit
Zoning Target Supply Air temp for
Cooling
current value:
1
C
D
Zoning Target Supply Air Temp
for Cooling
Range is 50 to 60
Default is 50, inc: 1
set-to
50
F
save cancel
about
reset All
edit
B
Zone 2 Temp Reading Calibration
current value:
reset
1
C
D
edit
Zone 2 Temp Reading Calibration
Range is -5 to 5
Default is 0, inc: 1
set-to
E
1
F
save
cancel
B
reset
edit
E
7/2013